30791401 has 9 divisors (see below), whose sum is σ = 31995453. Its totient is φ = 29631660.

The previous prime is 30791399. The next prime is 30791407. The reversal of 30791401 is 10419703.

The square root of 30791401 is 5549.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 30791401 - 2¹ = 30791399 is a prime.

It is a super-2 number, since 2×30791401² = 1896220751085602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30791407) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 171930 + ... + 172108.

Almost surely, 2^30791401 is an apocalyptic number.

30791401 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30791401 is the 5549-th square number.

30791401 is the 2775-th centered octagonal number.

It is an amenable number.

30791401 is a deficient number, since it is larger than the sum of its proper divisors (1204052).

30791401 is an frugal number, since it uses more digits than its factorization.

30791401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The cubic root of 30791401 is about 313.4318671799.

Multiplying 30791401 by its sum of digits (25), we get a square (769785025 = 27745²).

The spelling of 30791401 in words is "thirty million, seven hundred ninety-one thousand, four hundred one".