1901249496 has 112 divisors (see below), whose sum is σ = 5446550160. Its totient is φ = 621691200.

The previous prime is 1901249491. The next prime is 1901249501. The reversal of 1901249496 is 6949421091.

It is an interprime number because it is at equal distance from previous prime (1901249491) and next prime (1901249501).

It is a super-2 number, since 2×1901249496² = 7229499292080508032, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901249491) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 306021 + ... + 312171.

Almost surely, 2^1901249496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1901249496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2723275080).

1901249496 is an abundant number, since it is smaller than the sum of its proper divisors (3545300664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1901249496 is an equidigital number, since it uses as much as digits as its factorization.

1901249496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228 (or 6209 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1901249496 is about 43603.3197818698. The cubic root of 1901249496 is about 1238.8337751663.

The spelling of 1901249496 in words is "one billion, nine hundred one million, two hundred forty-nine thousand, four hundred ninety-six".