42401453 has 4 divisors (see below), whose sum is σ = 42430080. Its totient is φ = 42372828.

The previous prime is 42401449. The next prime is 42401479. The reversal of 42401453 is 35410424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42401453 - 2² = 42401449 is a prime.

It is a super-2 number, since 2×42401453² = 3595766433022418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42401423) 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, 11963 + ... + 15096.

It is an arithmetic number, because the mean of its divisors is an integer number (10607520).

Almost surely, 2^42401453 is an apocalyptic number.

It is an amenable number.

42401453 is a deficient number, since it is larger than the sum of its proper divisors (28627).

42401453 is a wasteful number, since it uses less digits than its factorization.

42401453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28626.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 42401453 is about 6511.6398088346. The cubic root of 42401453 is about 348.7066634229.

Adding to 42401453 its reverse (35410424), we get a palindrome (77811877).

The spelling of 42401453 in words is "forty-two million, four hundred one thousand, four hundred fifty-three".