38020454 has 4 divisors (see below), whose sum is σ = 57030684. Its totient is φ = 19010226.

The previous prime is 38020453. The next prime is 38020469. The reversal of 38020454 is 45402083.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×38020454² = 2891109844732232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38020453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9505112 + ... + 9505115.

It is an arithmetic number, because the mean of its divisors is an integer number (14257671).

Almost surely, 2^38020454 is an apocalyptic number.

38020454 is a deficient number, since it is larger than the sum of its proper divisors (19010230).

38020454 is a wasteful number, since it uses less digits than its factorization.

38020454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19010229.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 38020454 is about 6166.0728182531. The cubic root of 38020454 is about 336.2578507769.

The spelling of 38020454 in words is "thirty-eight million, twenty thousand, four hundred fifty-four".