30671490 has 16 divisors (see below), whose sum is σ = 73611648. Its totient is φ = 8179056.

The previous prime is 30671479. The next prime is 30671527. The reversal of 30671490 is 9417603.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1022383 = 30671490 / (3 + 0 + 6 + 7 + 1 + 4 + 9 + 0).

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, 511162 + ... + 511221.

It is an arithmetic number, because the mean of its divisors is an integer number (4600728).

Almost surely, 2^30671490 is an apocalyptic number.

30671490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30671490 is an abundant number, since it is smaller than the sum of its proper divisors (42940158).

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

30671490 is a wasteful number, since it uses less digits than its factorization.

30671490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022393.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 30671490 is about 5538.1847206463. The cubic root of 30671490 is about 313.0244718147.

The spelling of 30671490 in words is "thirty million, six hundred seventy-one thousand, four hundred ninety".