1964020431 has 8 divisors (see below), whose sum is σ = 2625989760. Its totient is φ = 1305699032.

The previous prime is 1964020427. The next prime is 1964020453. The reversal of 1964020431 is 1340204691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1964020431 - 2² = 1964020427 is a prime.

It is a super-2 number, since 2×1964020431² = 7714752506770851522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964020411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910725 + ... + 912878.

It is an arithmetic number, because the mean of its divisors is an integer number (328248720).

Almost surely, 2^1964020431 is an apocalyptic number.

1964020431 is a deficient number, since it is larger than the sum of its proper divisors (661969329).

1964020431 is a wasteful number, since it uses less digits than its factorization.

1964020431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823965.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1964020431 is about 44317.2701212518. The cubic root of 1964020431 is about 1252.3200498442.

The spelling of 1964020431 in words is "one billion, nine hundred sixty-four million, twenty thousand, four hundred thirty-one".