1425438788 has 6 divisors (see below), whose sum is σ = 2494517886. Its totient is φ = 712719392.

The previous prime is 1425438757. The next prime is 1425438793. The reversal of 1425438788 is 8878345241.

It can be written as a sum of positive squares in only one way, i.e., 1257269764 + 168169024 = 35458^2 + 12968^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178179845 + ... + 178179852.

It is an arithmetic number, because the mean of its divisors is an integer number (415752981).

Almost surely, 2^1425438788 is an apocalyptic number.

It is an amenable number.

1425438788 is a deficient number, since it is larger than the sum of its proper divisors (1069079098).

1425438788 is a wasteful number, since it uses less digits than its factorization.

1425438788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356359701 (or 356359699 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 50.

The square root of 1425438788 is about 37754.9836180603. The cubic root of 1425438788 is about 1125.4240476822.

The spelling of 1425438788 in words is "one billion, four hundred twenty-five million, four hundred thirty-eight thousand, seven hundred eighty-eight".