2228123402 has 4 divisors (see below), whose sum is σ = 3342185106. Its totient is φ = 1114061700.

The previous prime is 2228123399. The next prime is 2228123431. The reversal of 2228123402 is 2043218222.

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

It can be written as a sum of positive squares in only one way, i.e., 1212362761 + 1015760641 = 34819^2 + 31871^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557030849 + ... + 557030852.

Almost surely, 2^2228123402 is an apocalyptic number.

2228123402 is a deficient number, since it is larger than the sum of its proper divisors (1114061704).

2228123402 is a wasteful number, since it uses less digits than its factorization.

2228123402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114061703.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 2228123402 is about 47203.0020443615. The cubic root of 2228123402 is about 1306.1099763004.

The spelling of 2228123402 in words is "two billion, two hundred twenty-eight million, one hundred twenty-three thousand, four hundred two".