1431688948 has 12 divisors (see below), whose sum is σ = 2506591332. Its totient is φ = 715520000.

The previous prime is 1431688939. The next prime is 1431688967. The reversal of 1431688948 is 8498861341.

It can be written as a sum of positive squares in 2 ways, for example, as 1352621284 + 79067664 = 36778^2 + 8892^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1431688895 and 1431688904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71053 + ... + 88948.

It is an arithmetic number, because the mean of its divisors is an integer number (208882611).

Almost surely, 2^1431688948 is an apocalyptic number.

It is an amenable number.

1431688948 is a deficient number, since it is larger than the sum of its proper divisors (1074902384).

1431688948 is a wasteful number, since it uses less digits than its factorization.

1431688948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162242 (or 162240 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 52.

The square root of 1431688948 is about 37837.6657313846. The cubic root of 1431688948 is about 1127.0665418051.

It can be divided in two parts, 143168 and 8948, that multiplied together give a square (1281067264 = 35792²).

The spelling of 1431688948 in words is "one billion, four hundred thirty-one million, six hundred eighty-eight thousand, nine hundred forty-eight".