742037540 has 24 divisors (see below), whose sum is σ = 1559077632. Its totient is φ = 296662880.

The previous prime is 742037537. The next prime is 742037623. The reversal of 742037540 is 45730247.

It is a junction number, because it is equal to n+sod(n) for n = 742037497 and 742037506.

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, 35735 + ... + 52545.

It is an arithmetic number, because the mean of its divisors is an integer number (64961568).

Almost surely, 2^742037540 is an apocalyptic number.

It is an amenable number.

742037540 is an abundant number, since it is smaller than the sum of its proper divisors (817040092).

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

742037540 is a wasteful number, since it uses less digits than its factorization.

742037540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19027 (or 19025 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 742037540 is about 27240.3660034149. The cubic root of 742037540 is about 905.3335725865. Note that the first 3 decimals are identical.

Adding to 742037540 its reverse (45730247), we get a palindrome (787767787).

The spelling of 742037540 in words is "seven hundred forty-two million, thirty-seven thousand, five hundred forty".