610989456 has 80 divisors (see below), whose sum is σ = 1967874048. Its totient is φ = 158697600.

The previous prime is 610989443. The next prime is 610989461. The reversal of 610989456 is 654989016.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78960 + ... + 86351.

Almost surely, 2^610989456 is an apocalyptic number.

610989456 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

610989456 is an abundant number, since it is smaller than the sum of its proper divisors (1356884592).

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

610989456 is a wasteful number, since it uses less digits than its factorization.

610989456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165340 (or 165334 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 610989456 is about 24718.2009054057. The cubic root of 610989456 is about 848.5509132268.

The spelling of 610989456 in words is "six hundred ten million, nine hundred eighty-nine thousand, four hundred fifty-six".