34015990 has 32 divisors (see below), whose sum is σ = 63638784. Its totient is φ = 13077120.

The previous prime is 34015951. The next prime is 34015991. The reversal of 34015990 is 9951043.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34015991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60792 + ... + 61348.

It is an arithmetic number, because the mean of its divisors is an integer number (1988712).

Almost surely, 2^34015990 is an apocalyptic number.

34015990 is a deficient number, since it is larger than the sum of its proper divisors (29622794).

34015990 is a wasteful number, since it uses less digits than its factorization.

34015990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 34015990 is about 5832.3228648627. The cubic root of 34015990 is about 324.0119578475.

The spelling of 34015990 in words is "thirty-four million, fifteen thousand, nine hundred ninety".