30901630 has 16 divisors (see below), whose sum is σ = 56386224. Its totient is φ = 12191040.

The previous prime is 30901621. The next prime is 30901639. The reversal of 30901630 is 3610903.

It is an interprime number because it is at equal distance from previous prime (30901621) and next prime (30901639).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30901639) 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, 20436 + ... + 21895.

It is an arithmetic number, because the mean of its divisors is an integer number (3524139).

Almost surely, 2^30901630 is an apocalyptic number.

30901630 is a deficient number, since it is larger than the sum of its proper divisors (25484594).

30901630 is a wasteful number, since it uses less digits than its factorization.

30901630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42411.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 30901630 is about 5558.9234569294. The cubic root of 30901630 is about 313.8054361498.

The spelling of 30901630 in words is "thirty million, nine hundred one thousand, six hundred thirty".