7406431 has 4 divisors (see below), whose sum is σ = 7479864. Its totient is φ = 7333000.

The previous prime is 7406423. The next prime is 7406453. The reversal of 7406431 is 1346047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1346047 = 73 ⋅18439.

It is a cyclic number.

It is not a de Polignac number, because 7406431 - 2³ = 7406423 is a prime.

It is a super-2 number, since 2×7406431² = 109710440315522, which contains 22 as substring.

It is a Duffinian number.

7406431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7406396 and 7406405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7406411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36565 + ... + 36766.

It is an arithmetic number, because the mean of its divisors is an integer number (1869966).

Almost surely, 2^7406431 is an apocalyptic number.

7406431 is a deficient number, since it is larger than the sum of its proper divisors (73433).

7406431 is a wasteful number, since it uses less digits than its factorization.

7406431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73432.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 7406431 is about 2721.4758863528. The cubic root of 7406431 is about 194.9259504068.

The spelling of 7406431 in words is "seven million, four hundred six thousand, four hundred thirty-one".