102774434 has 32 divisors (see below), whose sum is σ = 183496320. Its totient is φ = 42239232.

The previous prime is 102774431. The next prime is 102774443. The reversal of 102774434 is 434477201.

It is a self number, because there is not a number n which added to its sum of digits gives 102774434.

It is not an unprimeable number, because it can be changed into a prime (102774431) 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, 65402 + ... + 66954.

It is an arithmetic number, because the mean of its divisors is an integer number (5734260).

Almost surely, 2^102774434 is an apocalyptic number.

102774434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

102774434 is a deficient number, since it is larger than the sum of its proper divisors (80721886).

102774434 is a wasteful number, since it uses less digits than its factorization.

102774434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 102774434 is about 10137.7726350515. The cubic root of 102774434 is about 468.4123797237.

The spelling of 102774434 in words is "one hundred two million, seven hundred seventy-four thousand, four hundred thirty-four".