1920743402 has 32 divisors (see below), whose sum is σ = 3229087680. Its totient is φ = 851523840.

The previous prime is 1920743389. The next prime is 1920743413. The reversal of 1920743402 is 2043470291.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108713 + ... + 125139.

It is an arithmetic number, because the mean of its divisors is an integer number (100908990).

Almost surely, 2^1920743402 is an apocalyptic number.

1920743402 is a deficient number, since it is larger than the sum of its proper divisors (1308344278).

1920743402 is a wasteful number, since it uses less digits than its factorization.

1920743402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16646.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 1920743402 is about 43826.2866553853. The cubic root of 1920743402 is about 1243.0533929925.

The spelling of 1920743402 in words is "one billion, nine hundred twenty million, seven hundred forty-three thousand, four hundred two".