747539142 has 32 divisors (see below), whose sum is σ = 1750339584. Its totient is φ = 208372800.

The previous prime is 747539141. The next prime is 747539171. The reversal of 747539142 is 241935747.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 747539094 and 747539103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747539141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215334 + ... + 218777.

It is an arithmetic number, because the mean of its divisors is an integer number (54698112).

Almost surely, 2^747539142 is an apocalyptic number.

747539142 is an abundant number, since it is smaller than the sum of its proper divisors (1002800442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

747539142 is a wasteful number, since it uses less digits than its factorization.

747539142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434164.

The product of its digits is 211680, while the sum is 42.

The square root of 747539142 is about 27341.1620455313. The cubic root of 747539142 is about 907.5655018783.

The spelling of 747539142 in words is "seven hundred forty-seven million, five hundred thirty-nine thousand, one hundred forty-two".