1901242494 has 24 divisors (see below), whose sum is σ = 4261406760. Its totient is φ = 611893968.

The previous prime is 1901242477. The next prime is 1901242507. The reversal of 1901242494 is 4942421091.

It is a super-2 number, since 2×1901242494² = 7229446041982680072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1820592 + ... + 1821635.

It is an arithmetic number, because the mean of its divisors is an integer number (177558615).

Almost surely, 2^1901242494 is an apocalyptic number.

1901242494 is an abundant number, since it is smaller than the sum of its proper divisors (2360164266).

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

1901242494 is a wasteful number, since it uses less digits than its factorization.

1901242494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642264 (or 3642261 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1901242494 is about 43603.2394897443. The cubic root of 1901242494 is about 1238.8322543551.

The spelling of 1901242494 in words is "one billion, nine hundred one million, two hundred forty-two thousand, four hundred ninety-four".