30507494940 has 480 divisors, whose sum is σ = 107862644736. Its totient is φ = 7166983680.

The previous prime is 30507494923. The next prime is 30507494987. The reversal of 30507494940 is 4949470503.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 54187099 + ... + 54187661.

Almost surely, 2^30507494940 is an apocalyptic number.

30507494940 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 30507494940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53931322368).

30507494940 is an abundant number, since it is smaller than the sum of its proper divisors (77355149796).

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

30507494940 is a wasteful number, since it uses less digits than its factorization.

30507494940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 30507494940 in words is "thirty billion, five hundred seven million, four hundred ninety-four thousand, nine hundred forty".