74731030 has 16 divisors (see below), whose sum is σ = 146744784. Its totient is φ = 27174880.

The previous prime is 74731003. The next prime is 74731043. The reversal of 74731030 is 3013747.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 74730986 and 74731004.

It is a congruent number.

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, 339577 + ... + 339796.

It is an arithmetic number, because the mean of its divisors is an integer number (9171549).

Almost surely, 2^74731030 is an apocalyptic number.

74731030 is a deficient number, since it is larger than the sum of its proper divisors (72013754).

74731030 is a wasteful number, since it uses less digits than its factorization.

74731030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679391.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 74731030 is about 8644.7110998575. The cubic root of 74731030 is about 421.2115997247.

Adding to 74731030 its reverse (3013747), we get a palindrome (77744777).

The spelling of 74731030 in words is "seventy-four million, seven hundred thirty-one thousand, thirty".