743990107442 has 16 divisors (see below), whose sum is σ = 1123311419160. Its totient is φ = 369560078208.

The previous prime is 743990107433. The next prime is 743990107451. The reversal of 743990107442 is 244701099347.

It is an interprime number because it is at equal distance from previous prime (743990107433) and next prime (743990107451).

It can be written as a sum of positive squares in 4 ways, for example, as 683302277641 + 60687829801 = 826621^2 + 246349^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567973 + ... + 1986584.

Almost surely, 2^743990107442 is an apocalyptic number.

743990107442 is a deficient number, since it is larger than the sum of its proper divisors (379321311718).

743990107442 is a wasteful number, since it uses less digits than its factorization.

743990107442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555245.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 743990107442 in words is "seven hundred forty-three billion, nine hundred ninety million, one hundred seven thousand, four hundred forty-two".