30701457 has 8 divisors (see below), whose sum is σ = 45483680. Its totient is φ = 20467620.

The previous prime is 30701449. The next prime is 30701479. The reversal of 30701457 is 75410703.

It is not a de Polignac number, because 30701457 - 2³ = 30701449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1137091 = 30701457 / (3 + 0 + 7 + 0 + 1 + 4 + 5 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30701457.

It is not an unprimeable number, because it can be changed into a prime (30701057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568519 + ... + 568572.

It is an arithmetic number, because the mean of its divisors is an integer number (5685460).

Almost surely, 2^30701457 is an apocalyptic number.

It is an amenable number.

30701457 is a deficient number, since it is larger than the sum of its proper divisors (14782223).

30701457 is a wasteful number, since it uses less digits than its factorization.

30701457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137100 (or 1137094 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 30701457 is about 5540.8895495218. The cubic root of 30701457 is about 313.1263835143.

The spelling of 30701457 in words is "thirty million, seven hundred one thousand, four hundred fifty-seven".