45400542 has 32 divisors (see below), whose sum is σ = 100932480. Its totient is φ = 13497120.

The previous prime is 45400541. The next prime is 45400549. The reversal of 45400542 is 24500454.

It is a super-2 number, since 2×45400542² = 4122418427787528, which contains 22 as substring.

45400542 is a modest number, since divided by 542 gives 454 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45400541) 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, 2992 + ... + 9987.

It is an arithmetic number, because the mean of its divisors is an integer number (3154140).

Almost surely, 2^45400542 is an apocalyptic number.

45400542 is an abundant number, since it is smaller than the sum of its proper divisors (55531938).

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

45400542 is a wasteful number, since it uses less digits than its factorization.

45400542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13048.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 45400542 is about 6737.9924309842. The cubic root of 45400542 is about 356.7415370623.

Adding to 45400542 its reverse (24500454), we get a palindrome (69900996).

The spelling of 45400542 in words is "forty-five million, four hundred thousand, five hundred forty-two".