1956599040 has 216 divisors, whose sum is σ = 6870243744. Its totient is φ = 474214400.

The previous prime is 1956599027. The next prime is 1956599053. The reversal of 1956599040 is 409956591.

It is an interprime number because it is at equal distance from previous prime (1956599027) and next prime (1956599053).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 462535 + ... + 466745.

It is an arithmetic number, because the mean of its divisors is an integer number (31806684).

Almost surely, 2^1956599040 is an apocalyptic number.

1956599040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1956599040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3435121872).

1956599040 is an abundant number, since it is smaller than the sum of its proper divisors (4913644704).

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

1956599040 is a wasteful number, since it uses less digits than its factorization.

1956599040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257 (or 4232 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 48.

The square root of 1956599040 is about 44233.4606378475. The cubic root of 1956599040 is about 1250.7406895498.

The spelling of 1956599040 in words is "one billion, nine hundred fifty-six million, five hundred ninety-nine thousand, forty".