1042400433 has 8 divisors (see below), whose sum is σ = 1395635296. Its totient is φ = 692049600.

The previous prime is 1042400431. The next prime is 1042400459. The reversal of 1042400433 is 3340042401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1042400433 - 2¹ = 1042400431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042400431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720163 + ... + 721608.

It is an arithmetic number, because the mean of its divisors is an integer number (174454412).

Almost surely, 2^1042400433 is an apocalyptic number.

It is an amenable number.

1042400433 is a deficient number, since it is larger than the sum of its proper divisors (353234863).

1042400433 is a wasteful number, since it uses less digits than its factorization.

1042400433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442015.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1042400433 is about 32286.2266764018. The cubic root of 1042400433 is about 1013.9382988650.

Adding to 1042400433 its reverse (3340042401), we get a palindrome (4382442834).

The spelling of 1042400433 in words is "one billion, forty-two million, four hundred thousand, four hundred thirty-three".