1961248624 has 20 divisors (see below), whose sum is σ = 3812306344. Its totient is φ = 977427648.

The previous prime is 1961248621. The next prime is 1961248649. The reversal of 1961248624 is 4268421691.

It is a super-3 number, since 3×1961248624³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961248621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194727 + ... + 204550.

Almost surely, 2^1961248624 is an apocalyptic number.

It is an amenable number.

1961248624 is a deficient number, since it is larger than the sum of its proper divisors (1851057720).

1961248624 is a wasteful number, since it uses less digits than its factorization.

1961248624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399592 (or 399586 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 1961248624 is about 44285.9867678253. The cubic root of 1961248624 is about 1251.7306425819.

The spelling of 1961248624 in words is "one billion, nine hundred sixty-one million, two hundred forty-eight thousand, six hundred twenty-four".