978425434 has 24 divisors (see below), whose sum is σ = 1714946688. Its totient is φ = 417435480.

The previous prime is 978425431. The next prime is 978425453. The reversal of 978425434 is 434524879.

It is a happy number.

978425434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (978425431) 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, 532 + ... + 44239.

It is an arithmetic number, because the mean of its divisors is an integer number (71456112).

Almost surely, 2^978425434 is an apocalyptic number.

978425434 is a deficient number, since it is larger than the sum of its proper divisors (736521254).

978425434 is a wasteful number, since it uses less digits than its factorization.

978425434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45010 (or 45003 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 978425434 is about 31279.7927422801. The cubic root of 978425434 is about 992.7561310669.

The spelling of 978425434 in words is "nine hundred seventy-eight million, four hundred twenty-five thousand, four hundred thirty-four".