34038781 has 12 divisors (see below), whose sum is σ = 41319072. Its totient is φ = 27906648.

The previous prime is 34038727. The next prime is 34038787. The reversal of 34038781 is 18783043.

It is not a de Polignac number, because 34038781 - 2¹³ = 34030589 is a prime.

It is a super-2 number, since 2×34038781² = 2317277223931922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34038787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13975 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (3443256).

Almost surely, 2^34038781 is an apocalyptic number.

It is an amenable number.

34038781 is a deficient number, since it is larger than the sum of its proper divisors (7280291).

34038781 is a wasteful number, since it uses less digits than its factorization.

34038781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30240 (or 30233 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 34038781 is about 5834.2763904361. The cubic root of 34038781 is about 324.0843052730.

The spelling of 34038781 in words is "thirty-four million, thirty-eight thousand, seven hundred eighty-one".