742025739 has 32 divisors (see below), whose sum is σ = 1220154880. Its totient is φ = 390604032.

The previous prime is 742025731. The next prime is 742025743. The reversal of 742025739 is 937520247.

It is not a de Polignac number, because 742025739 - 2³ = 742025731 is a prime.

It is a super-2 number, since 2×742025739² = 1101204394676992242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 742025697 and 742025706.

It is not an unprimeable number, because it can be changed into a prime (742025731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146847 + ... + 151815.

It is an arithmetic number, because the mean of its divisors is an integer number (38129840).

Almost surely, 2^742025739 is an apocalyptic number.

742025739 is a deficient number, since it is larger than the sum of its proper divisors (478129141).

742025739 is a wasteful number, since it uses less digits than its factorization.

742025739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5539.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 742025739 is about 27240.1493938635. The cubic root of 742025739 is about 905.3287732345.

The spelling of 742025739 in words is "seven hundred forty-two million, twenty-five thousand, seven hundred thirty-nine".