1025420433 has 8 divisors (see below), whose sum is σ = 1447652448. Its totient is φ = 643401024.

The previous prime is 1025420401. The next prime is 1025420471. The reversal of 1025420433 is 3340245201.

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

It is not a de Polignac number, because 1025420433 - 2⁵ = 1025420401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1025420933) 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, 10053091 + ... + 10053192.

It is an arithmetic number, because the mean of its divisors is an integer number (180956556).

Almost surely, 2^1025420433 is an apocalyptic number.

It is an amenable number.

1025420433 is a deficient number, since it is larger than the sum of its proper divisors (422232015).

1025420433 is a wasteful number, since it uses less digits than its factorization.

1025420433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20106303.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1025420433 is about 32022.1865743113. The cubic root of 1025420433 is about 1008.4026749633.

Adding to 1025420433 its reverse (3340245201), we get a palindrome (4365665634).

The spelling of 1025420433 in words is "one billion, twenty-five million, four hundred twenty thousand, four hundred thirty-three".