738406426 has 4 divisors (see below), whose sum is σ = 1107609642. Its totient is φ = 369203212.

The previous prime is 738406423. The next prime is 738406451. The reversal of 738406426 is 624604837.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624604837 = 17 ⋅36741461.

It can be written as a sum of positive squares in only one way, i.e., 652751401 + 85655025 = 25549^2 + 9255^2 .

It is not an unprimeable number, because it can be changed into a prime (738406423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184601605 + ... + 184601608.

Almost surely, 2^738406426 is an apocalyptic number.

738406426 is a deficient number, since it is larger than the sum of its proper divisors (369203216).

738406426 is a wasteful number, since it uses less digits than its factorization.

738406426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369203215.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 738406426 is about 27173.6347587142. The cubic root of 738406426 is about 903.8544263007.

The spelling of 738406426 in words is "seven hundred thirty-eight million, four hundred six thousand, four hundred twenty-six".