30926499840 has 520 divisors, whose sum is σ = 112558494048. Its totient is φ = 8121876480.

The previous prime is 30926499833. The next prime is 30926499871. The reversal of 30926499840 is 4899462903.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 170864550 + ... + 170864730.

Almost surely, 2^30926499840 is an apocalyptic number.

30926499840 is a gapful number since it is divisible by the number (30) 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 30926499840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56279247024).

30926499840 is an abundant number, since it is smaller than the sum of its proper divisors (81631994208).

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

30926499840 is a wasteful number, since it uses less digits than its factorization.

30926499840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 30926499840 in words is "thirty billion, nine hundred twenty-six million, four hundred ninety-nine thousand, eight hundred forty".