30765740 has 24 divisors (see below), whose sum is σ = 64864800. Its totient is φ = 12257408.

The previous prime is 30765737. The next prime is 30765751. The reversal of 30765740 is 4756703.

It is a junction number, because it is equal to n+sod(n) for n = 30765697 and 30765706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2336 + ... + 8184.

It is an arithmetic number, because the mean of its divisors is an integer number (2702700).

Almost surely, 2^30765740 is an apocalyptic number.

It is an amenable number.

30765740 is an abundant number, since it is smaller than the sum of its proper divisors (34099060).

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

30765740 is a wasteful number, since it uses less digits than its factorization.

30765740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121 (or 6119 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 30765740 is about 5546.6872996411. The cubic root of 30765740 is about 313.3447734870.

The spelling of 30765740 in words is "thirty million, seven hundred sixty-five thousand, seven hundred forty".